Roofing element



S. M. FORD.

ROOFING ELEMENT.

APPLICATION FILED NOV. 26. 1919.

1,424,459, Patented Aug. 1,1922.

fl phaJ/Z' coal-21113) 20 (crushed 520512) efficient roof covering ,iiir as a e.

SILAS M. FORD, OF ST. PAUL, MINNESOTA.

ROOFING ELEMENT.

To all whom z t may concern:

SILAS M. Form), a citizen of the United States, and resident of St. Paul, county of Ramsey, and State of Minnesota, have invented ,certain new and use- Be it known that I,

' ful Improvements in Roofing'Elements, of

which the following is a specification, and which are illustrated in drawings, forming a part thereof.

' The invention relates to prepared roofing elements and is an improvement upon the invention described and claimed in Patent N 0. 1,207,523, issued to me December 5, 1916. The object of the invention is the provision of roofing elements designed to afford an of improved appearance and great durability.

While it has been a common practice to cut prepared roofing into separate shingles and short'strips comprising a plurality of connected shingles, difliculty is experienced in the use of these materials upon a roof for the reason that the exposed portions of the shingles or shiiiglestrips may be raised by the wind and thereafter present an un- .sightly appearance and an inefficient roof covering. Furthermore, prepared roofing shingles and shingle strips, as ordinarily constructed, are of, less thickness than is generally regarded as desirable for the purpose of producing a satisfactory appearance when laid in overlapping rows.

The present invention accordingly contemplates prepared roofing shingles and shingle strips having the weather portions stiffened with a marginal reenforcement which adds to the relief of the shingle when in use and efi'ectively' resists lifting of the free edges of the shingles whether causes. g In the accompanying draw1ngs:

by the wind or other roofing shingle embodying'the features of improvement provided by the invention;

Fig. 2 is an end view of the same; Fig. 3 issimilar to Fig. 1, but illustrates theemployment of the invention in a strip shingle and is partlybrokenaway to expose the eintermediate and body layer of the pre- I pared roofing material;

Fig. 4 is an edge view of the strip shingle illustrated in Fig. 3; and

Fig. 5 is afdetail sectional view taken on the line 55 of Fig. 3.

In carrying out the invention, the weather- ,portion 13 of an individual-shingle, as 10 Specification of Letters Patent.

the accompanying v elements in the same row Fig. 1 is a perspective v1ew of a prepared (Fig. 1) or the shingle tabls l2 ofa strip shingle, as 11 (Fig. 3),v are formed with upturned edges 14, 15, or 16, 17, at opposite sides of the same. When the said shingle or shingle strip comprises a body layer 18 of waterproof felt with an asphalt coating 19 upon one side of the same and a surface layer 20 of crushed slate or the like, the upturned margins 14, 15 or 16, 17 are preferably formed between dies (not shown) which firmly compress the upstanding portion of Patented Aug. 1, 1922. Applicationfiled November 26,1919. Serial No. 340,794.

the felt layer 18, as at 21 (Fig. 5) and draw the asphalt and slate layers 19, 20, over the edge of the same, as at 22 and 23. The crushed slate layer 20 and the asphalt layer 19 thus extend uniformly over the weather portion of. the shingle or shingle strip, including the upturned edges of the felt layer 18. The roof surface to which the shingles or shingle strips are applied is thereby covered with crushed slate in all parts and no part of the felt layer 18 is directly exposed to the weather or to falling sparks or fire brands.

It will, of course, be understood that the upturned margins 14, 15, or 16, 17 of the shingles 10 and shingle tabs 12 furnish asufficient separation, of the weather portions of adjacent shingles or shingle tabs without discarding any part of the original web (not shown) from which the corresponding elements are cut and without any necessityfor separatingthe covered portions of adjacent when applying Furthermore, the upper ends of the upturned margins 14, 15, and 16, 17, provide guide shoulders against which the lower ends or edges of the elements of the next succeeding row are to be placed and whether covered with the individual shingles 10 or with shingle strips 11 of any length, the finished roof has theappearance of being formed from separate elements of substantial thickness. While the shingle 10 and shingle tabs 12 are shown as being formed them to a roof.-

with parallel sides, the invention is not llmited to roofing elements of this shape.

I claim as my invention:

1. A prepared roofing element comprising weather and covered portions of flexible laminated sheet material with an integral vertical flange comprising all the layers of the said laminated sheet material extending along one of the side edges of the said weather portion.

2. A prepared roofing element comprisof the weather and to reduce the along each of'the side edges of "the said weather portion. A 4. A prepared roofing element comprising throughout its weather and covered portions a uniform width sheet'material, a part of the said sheet material extending along each of the side edges of the weather portion of the element and comprising all the layers of the said laminated sheet material being folded upwardly to provide reenforcing marginal flanges and to reduce the width of the element im its said weather portion.

5. A prepared weather and covered portions of laminated structure including a'bodylayer of sheet mabeing folded upwardly of flexible laminated roofing element comprising terial, an asphalt layer and a layer of grit, the sheet constituting the said body layer being folded upwardly along one of the sideedges of the weather portion of the element to form an upstanding integral flange and the said asphalt and grit layers being extended over the upper edge of the said flange.

6. A prepared roofing element comprising covered and weather portions, the latter being of laminated structure including a body layer of sheet material, an asphalt layer and a layer of grit, the sheet constituting the said body layer being folded upwardly along portion of the element to form an upstanding integral flange and the said asphalt and grit layers being extended over the upper edge of the said flange.

A prepared roofing element comprising throughout its weatherand covered portions, a uni terial of laminated structure comprising a body layer, a part of the said sheet material including its said body layer extending along one of the side edges of the weather portion of the element being folded upwardly to provide a vertical reenforcing marginal .flange and to reduce the width of the element in its said weather portion.

SILAS M. FORD.

one of the side edges of the weather form width of flexible sheet ma- 

